- makeCoherent should be called after TBX finished processing
- this is when tagAddress is updated with taskCount
makeCoherent is called from makeNonResident which is invoked just
after flush and may happen before TBX server finished processing
leading to invalid data to be read back to CPU accessible memory
- this fix adds waiting for taskCount to blocking calls for TBX CSR
before calling makeNonResident on surfaces to guarantee correct data
from TBX server is ready.
Change-Id: I498a5454e0826eec2a5413a08880af40268550e1
64277ee849